How Can I Manually Restore Wiz Firmware *without* Sd Card

[glossywhite]

Hi folks. Does anyone here know if I can manually put the 1.1.0 firmware back onto my Wiz, without an SD card?. I only have an SDHC and it doesn't seem to like that - won't work for firmware upgrading. I am very good with the *nix "dd" command - can I do it that way?.

Where does the Wiz OS reside; is it within the NAND, or somewhere else?. If anyone could post in-depth details, that would be fantastic.

Thanks.